Water extraction was provided by a restoration service, by removing a few gallons of water from a house drain trap. The house drain trap is similar to a sump pump cavity, but is rectangular, and is about 12" by 25" by 18" deep and not sealed as it's beneath basement floor level. The plumber needed to access the sewer plug located at the bottom of the cavity, and requested the restoration service to remove the standing water. After the standing water was removed, more equipment was brought in. My guess is, the restoration company saw $$$ opportunity with homeowners insurance, by padding the bill to the tune of over $3000. They brought in fans, dehumidifier, air cleaner, and listed cleaning and other services which were clearly not provided and not needed. This would be analogous to having a few gallons of water in the bathtub, and the solution to removing the few drops of water would be to use expensive equipment over the course of several days, to dry the last few drops of remaining moisture in the bathtub. Of course we are disputing the invoice. What's our best option as homeowners ?